<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <link rel="stylesheet" href="../css/reset.css">
    <title>我的账户</title>
    <style>
        body,html{
            width:100%;
        }
        #main{
            width:100%;
        }
        #heard{
            width:100%;
        }
        #heard iframe{
            width:100%;
            height:167px;
            border:none;
        }
        #footer{
            width:100%;
           
        }
        #footer iframe{
            width:100%;
            height:300px;
            border:none;
           
        }
        #center{
            width:80%;
            margin: auto;
            border:1px solid red;
        }
        #center iframe{
            width:160px;
            height:550px;
            border:none;
        }
    </style>
</head>
<body>
    <div id="main">
        <div id="heard">
            <iframe src="./Heard.html" >
                
            </iframe>
        </div>
    </div>
    <div id="center">
        <iframe src="./center.html" id="centerIframe"></iframe>

    </div>
    <div id="footer">
        <iframe src="./Footer.html" ></iframe>
    </div>
</body>
</html>

<script src="../js/jquery-3.4.1.js"> </script>
<script>
    console.log($("#centerIframe").children());

</script>